Wear Resistant Coatings Reduce Particulate Contamination in a Magnetic Disk Drive

  • Wendy Jones
  • John McDowell
  • Walter Prater
  • Garvin Stone


A test was performed to evaluate the particulate contamination coming from components in a magnetic disk drive. The 300-series stainless steel components undergo unlubricated sliding motion and are susceptible to adhesive wear and fretting. To reduce the wear debris, the components were coated with six different hard coatings: electroless nickel, chromium, Nedox®, titanium nitride, amorphous diamond, and iron boride. Hardware was tested in a specially made chamber that permitted collection of the airborne particles on nucleopore filters as well as real-time particle counts. Particle size distribution and elemental composition were provided by automated image analysis using SEM and EDX.


Abrasive Wear Wear Debris Wear Scar Adhesive Wear Stainless Steel Substrate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Wendy Jones
    • 1
  • John McDowell
    • 1
  • Walter Prater
    • 1
  • Garvin Stone
    • 1
  1. 1.General Products DivisionIBM CorporationSan JoseUSA

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